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영어

Polyurethane foam is often used as an insulation material in modern society due to its excellent insulation function, light weight and low density. As a result, fires are occurring frequently at construction sites using polyurethane foam. Due to the characteristics of polyurethane foam, the spread of fire is fast and toxic gases erupt in large quantities, causing property damage and human damage Most of the causes of the fire are caused by carelessness of workers during heat of work around the area, such as welding spark and torch use, with polyurethane foam applied. In response, this study experimented with the possibility of direct ignition on polyurethane foam applied using welding spark, grinder, and torch, which are the heat of works mainly used in construction sites. Experiments show that the applied polyurethane foam was easily ignited by welding spark, torches, and oil vapor except grinder spark. The purpose of the project is to prevent fires by prohibiting heat work such as welding at polyurethane foam work places and thoroughly observing and supervising prescribed fire safety rules.